5 Questions
What is a primary key in a relational database table?
A candidate key selected as the primary means of identifying rows in a table
What is the purpose of normalization in relational databases?
To avoid redundancy
What is a composite key in the context of database design?
A key that consists of two or more columns
What does it mean for a column to have 'nullability' in database table design?
The column may contain null values
What does it mean for a table to be in 'first normal form' (1NF)?
Each cell of the table holds a single value, but duplicate rows are allowed
Test your knowledge about advanced concepts in relational databases and the structure of relational DBMS products. Understand the intricacies of storing data in the form of relations/tables, data types, uniqueness, and more.
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